What are the signs that my dog is going to give birth soon?

My littler girl should be due in a week, I've done a lot or research on a female dogs pregency but really no answers. I knw every dog is diffrent. Shes laying down more, when she pees she had slime. Puppies are very acitve. If I put my ear up to them I can hear heat beats. I can all so feel them beating. She is nesting when she goes to sleep. IS she about to give birth soon?